A little over 20 years of just casual use and later being a software engineer, I never really sat down and went "I'm going to practice typing for 30 minutes" I just naturally got better with time because I type so much. They did have those typing classes in grade school back in the early 2000s that everyone had to do, but I was already fairly decent at typing by the time we had to do those... but it did teach me how to properly position my hands on the home row because at that point I was still touch typing.